package ooday01;

/**
 * 说明:
 *
 * @author: luohaowei
 * @date:2023/2/21
 **/
public class zy3 {
    public static void main(String[] args) {
        Student zs=new Student();
        Student ls=new Student("张三",22);
        Student ww=new Student("王五",22,"817","002");
        zs.sayHi();
        ww.sayHi();
        ls.sayHi();
    }
}
/*
Student zs=new Student();
Student ls=new Student("张三",22);
Student ww=new Student("王五",22,"817","002");
zs.sayHi;
ww.sayHi;
ls.sayHi;
 */
